
Moss Garden
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We had our first frost of the season this week, and I’ve been occupied with bringing in those pots of tender plants that we will keep through the winter, and settling those that can remain outdoors into protected spots. My partner was helping me (encouraging me, prodding me, motivating me to keep going, quite honestly) when he went to move our little potted Japanese Maple. We heard the cracking and crunch as the pot fell apart in his hands. Oh well, terra-cotta pots don’t last forever, do they? And this one has spent a few winters outdoors on our deck, holding this little tree as it grows.
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I love Japanese maples, and love the aesthetic of potted ones on the deck mixed among our ferns and flowering summer plants. They can remain outdoors year round, and allow one to appreciate the seasons from budding to leaf drop up close. The tree is fine.
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The pot is a bit mangled, but I had been looking for a pot to create a winter moss garden, anyway. I left the whole thing alone in a plastic disk for a few days, until I remembered an identical pot that I’d just emptied days ago. The Colocasia came indoors in a plastic dish for the winter, and so there was a pot open and available to receive the maple tree.
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It was a sorry looking mess after the pot broke, but the tree was fine for a few days while I decided what to do.
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If you’ve been shopping for pots recently, you know that pickings are very slim in November. I’ve been looking for a pot for my moss garden for a while. I couldn’t find what I wanted at a reasonable price. I even ordered a blue Fiestaware bowl to plant up, and then decided to keep the bowl in the kitchen once it arrived. It was too pretty, if that is possible…. it was a new shade of blue that we didn’t yet have. So this little broken terra-cotta bowl was clearly a gift from the universe showing me how to proceed.
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The garden at Mossy Creek Pottery in Lincoln City, Oregon.
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As you probably know, moss doesn’t have any roots. It has little structures that anchor it to the ground, but they don’t absorb water from the soil as roots do for vascular plants. Each cell of the moss plant is on its own for hydration. But moisture can travel from cell to cell. That is why moss loves humidity, standing water and lots of rain.
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We’ve had such a wet year that moss is growing in places in the garden it hasn’t in the past. Which is fine, because I really love moss.
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To establish a moss garden, you don’t need very good soil. As you may have noticed, moss can grow on rocks, bricks, gravel, bark, ceramics, concrete and so many other surfaces that aren’t soil. So you don’t need good soil or deep soil to establish a moss garden. But because I have other plants in this one, I am recycling some pretty good soil left over as I broke down some of last summer’s plantings.
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It is important to pack the soil down fairly firmly, though, and then to press the moss firmly onto the soil. If laying moss outdoors into an area of the garden, some gardeners walk over the moss a few times to help it adhere to its new spot. So press down firmly so the moss is in good contact with the soil. But I’m ahead of myself, here.
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I had a few little bulbs left over from other projects, and a clump of dwarf Mondo grass to add to this planting. The bulbs go in first, to a depth equal to three times their height. If you can’t tell which end is which, plant them on their side. The bulb’s roots will grow downwards and right the bulb as the stem begins to grow upward in the spring. Firm the soil over the bulbs before covering it with freshly lifted moss.
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I was able to divide my plug of Mondo grass into several divisions. I replanted half of the plug into a nursery pot to grow on, and used these tiny divisions for the moss garden. Have a blade nearby when dividing Mondo grass, as there comes a point where you often have to cut the sections. As long as each section has roots, they will continue to grow on.
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I planted the Mondo grass along the lower, broken edge of the pot, to help stabilize the soil in the planting. After planting the grass, mulch around it with moss. Then I built terraces into the sloping potting soil with pieces of the broken pot, and used different varieties of moss in the different sections to give some interesting texture.
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Kept shaded and moist, moss can grow indefinitely in a planting like this. Best of all is when the moss produces spores and those spores colonize the planting themselves, even growing on the pot. That happens if the moss is very happy in the spot you select for it.
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The main enemies of a potted moss garden are those creatures who’d like to have some of the moss for themselves. Sometimes birds pinch a bit for their nests, or squirrels toss it aside in their attempts to bury or retrieve nuts, or worse, dig your tasty bulbs. I used those little early Crocus known as ‘Tommies,’ which aren’t tasty to squirrels. With most bulbs, it is smart to spray them with a bit of animal repellent before you plant them. A squirt to the whole pot once finished is good insurance, too.
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Here is our little Japanese Maple snugly tucked into a new pot. I had some scraps of moss left over, and so added them as mulch under the tree. I’ll find some fine gravel to finish dressing the soil.
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This little planting really costs nothing out of hand. I recycled a broken pot, re-purposed used potting soil, used up the last few bulbs left from a pack, and lifted the moss from my own garden. It should remain a lovely spot of green out in the garden, all winter long, with minimal care. It probably won’t even need watering. Only if we have a stretch of warm, dry weather will I need to do anything for it, at all.
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If I had been fortunate enough to find a little evergreen fern in the yard, like an Ebony Spleenwort, it would have gone in the pot, too, growing up through the moss. Moss makes a lovely background for spring bulbs, too. A rock or two, or a quartz crystal, finishes off the arrangement. It is always satisfying to take broken bits and leftover bits and find interesting ways to use them. Now, as we change the seasons, is a good time for clearing away the old and making room for something fresh and new. Like a breath of fresh air, it keeps us going.
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Woodland Gnome 2020
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This moss garden will live and grow in the rock garden at the Williamsburg Botanical Garden. Many thanks to the wonderful ‘Six on Saturday’ meme sponsored by The Propagator
Please visit my other site, Illuminations, for a daily quotation and a photo of something beautiful.